1-Propanol (data page)

Last updated January 25, 2023

This page provides supplementary chemical data on 1-Propanol (n-propanol).

Material Safety Data Sheet

The handling of this chemical may incur notable safety precautions. It is highly recommended that you seek the Material Safety Datasheet (MSDS) for this chemical from a reliable source.

Structure and properties

Index of refraction, n_D

1.383 at 25 °C

Abbe number

?

Dielectric constant, ε_r

20.1 ε₀ at 25 °C

Bond strength

?

Bond length

?

Bond angle

?

Magnetic susceptibility

?

Surface tension

23.78 dyn/cm at 20 °C

Viscosity ^[1]

3.893 mPa·s	at 0 °C
2.52 mPa·s	at 15 °C
2.256 mPa·s	at 20 °C
1.72 mPa·s	at 30 °C
1.405 mPa·s	at 40 °C
1.130 mPa·s	at 50 °C
0.760 mPa·s	at 70 °C

Thermodynamic properties

Phase behavior
Triple point	148.75 K (–124.4 °C), ? Pa
Critical point	536.9 K (263.8 °C), 5200 kPa
Std enthalpy change of fusion, Δ_fusH^o	5.37 kJ/mol
Std entropy change of fusion, Δ_fusS^o	36 J/(mol·K)
Std enthalpy change of vaporization, Δ_vapH^o	47.5 kJ/mol
Std entropy change of vaporization, Δ_vapS^o	126.6 J/(mol·K)
Solid properties
Std enthalpy change of formation, Δ_fH^o_solid	? kJ/mol
Standard molar entropy, S^o_solid	112.7 J/(mol K)
Heat capacity, c_p	106.3 J/(mol K) at –124 °C
Liquid properties
Std enthalpy change of formation, Δ_fH^o_liquid	–303.0 kJ/mol
Standard molar entropy, S^o_liquid	192.8 J/(mol K)
Enthalpy of combustion, Δ_cH^o	–2021 kJ/mol
Heat capacity, c_p	144.4 J/(mol K)
Gas properties
Std enthalpy change of formation, Δ_fH^o_gas	–255 kJ/mol
Standard molar entropy, S^o_gas	322.49 J/(mol K)
Heat capacity, c_p	85.56 J/(mol K) at 25°
van der Waals' constants ^[2]	a = 1512 L² kPa/mol² b = 0.1029 liter per mole

Vapor pressure of liquid

P in mm Hg		1	10	40	100	400	760	1520	3800	7600	15200	30400	45600
T in °C		–15.0	14.7	36.4	52.8	82.0	97.8	117.0	149.0	177.0	210.8	250.0	—

Table data obtained from CRC Handbook of Chemistry and Physics 44th ed.

log10 of n-propanol vapor pressure. Uses formula:
log
e
[?]
P
m
m
H
g
=
{\displaystyle \scriptstyle \log _{e}P_{mmHg}=}
log
e
[?]
(
760
101.325
)
-
7.702226
log
e
[?]
(
T
+
273.15
)
-
8002.693
T
+
273.15
+
71.71697
+
3.950448
x
10
-
07
(
T
+
273.15
)
2
{\displaystyle \scriptstyle \log _{e}({\frac {760}{101.325}})-7.702226\log _{e}(T+273.15)-{\frac {8002.693}{T+273.15}}+71.71697+3.950448\times 10^{-07}(T+273.15)^{2}}
obtained from CHERIC LogNpropanolVaporPressure.png — **log₁₀ of n-propanol vapor pressure.** Uses formula: $\scriptstyle \log _{e}P_{mmHg}=$ $\scriptstyle \log _{e}({\frac {760}{101.325}})-7.702226\log _{e}(T+273.15)-{\frac {8002.693}{T+273.15}}+71.71697+3.950448\times 10^{-07}(T+273.15)^{2}$ obtained from CHERIC

Distillation data

BP Temp. °C	% by mole water
Vapor-liquid Equilibrium for n-propanol/Water^[4] P = 100 kPa
BP Temp. °C	liquid	vapor
96.60	0.00	0.00
96.25	1.3	2.5
94.69	3.8	9.7
92.92	8.3	19.4
90.64	16.0	31.7
89.31	22.6	39.0
88.48	28.3	43.7
87.67	35.6	48.7
87.32	42.6	52.2
87.18	50.0	55.0
87.13	58.3	57.2
87.12	64.8	58.5
87.17	70.8	59.5
87.29	76.3	60.3
87.47	81.7	60.8
87.63	85.3	61.3
87.78	88.3	61.9
87.97	91.1	62.7
88.28	92.6	63.2
88.62	94.5	64.3
89.26	95.7	66.3
90.15	96.7	68.3
91.91	97.8	73.9
93.72	98.5	79.4
95.56	99.1	85.4
97.08	99.6	90.5
98.80	99.9	98.4
99.63	100.0	100.0

BP Temp. °C	% by mole methanol
Vapor-liquid Equilibrium for n-propanol/Methanol ^[4] P = 760 mm Hg
BP Temp. °C	liquid	vapor
92.30	9.2	23.5
88.88	18.0	41.2
83.90	28.0	56.2
82.53	32.0	61.0
80.25	38.0	67.5
78.15	45.9	75.3
74.46	58.1	83.2
74.42	58.3	83.5
71.28	68.0	88.8
69.40	76.4	92.8
68.30	82.2	94.0
67.08	86.2	95.5

BP Temp. °C	% by mole butanone
Vapor-liquid Equilibrium for n-propanol/Butanone ^[4] P = 760 mm Hg
BP Temp. °C	liquid	vapor
94.8	5.4	12.5
93.0	9.3	20.6
91.8	12.8	27.1
90.3	17.1	33.7
88.9	23.5	41.3
87.7	28.4	46.9
86.1	36.6	54.7
84.9	44.0	60.5
83.8	53.3	67.7
83.5	57.2	70.1
82.5	64.1	74.8
81.6	73.0	81.0
81.0	80.4	85.9
80.4	87.9	90.9
79.9	94.3	95.7

BP Temp. °C	% by mole cyclohexane
Vapor-liquid Equilibrium for n-propanol/Cyclohexane ^[4] P = 101.325 kPa
BP Temp. °C	liquid	vapor
80.42	100	100
77.42	96.46	88.36
76.40	95.27	85.29
75.71	93.97	83.35
75.18	91.59	80.91
74.92	89.52	79.43
74.59	86.19	77.89
74.40	80.52	76.29
74.33	78.11	75.69
74.29	75.91	75.13
74.27	74.19	74.75
74.28	71.43	74.30
74.33	68.00	73.70
74.43	64.26	72.87
74.49	61.21	72.20
74.77	54.09	70.71
75.23	48.00	69.53
75.59	41.10	67.48
76.78	33.29	64.73
77.72	28.53	62.71
79.12	23.01	59.03
81.11	17.35	53.39
82.69	14.44	49.70
84.90	10.73	42.87
86.64	8.44	38.28
89.34	4.75	28.90
90.65	3.60	24.39
91.88	2.70	19.94
92.85	2.13	16.06
93.44	1.64	13.64
97.0	0.0	0.0

BP Temp. °C	% by mole n-propanol
Vapor-liquid Equilibrium for n-propanol/n-Hexane ^[4] P = 760 mm Hg
BP Temp. °C	liquid	vapor
77.70	2.3	13.6
70.05	6.0	25.7
68.25	11.7	42.4
64.70	21.0	55.8
64.10	24.6	60.0
63.90	28.6	63.7
62.25	39.8	67.2
62.20	41.7	67.2
61.90	49.3	69.1
61.55	59.3	70.6
61.60	65.7	72.0
61.65	67.3	72.5
61.60	72.8	72.7
61.80	87.2	75.8
62.50	92.3	79.9
63.90	97.5	85.6

BP Temp. °C	% by mole acetone
Vapor-liquid Equilibrium for n-propanol/Acetone ^[4] P = 760 mm Hg
BP Temp. °C	liquid	vapor
86.55	10.80	40.31
78.35	24.17	63.36
72.65	35.55	74.32
68.50	47.42	81.76
65.00	60.74	87.74
62.85	71.29	91.51

Spectral data

UV-Vis
λ_max	? nm
Extinction coefficient, ε	?
IR
Major absorption bands	? cm ⁻¹
NMR
Proton NMR
Carbon-13 NMR
Other NMR data
MS
Masses of main fragments

References

↑ CRC Handbook of Chemistry and Physics, 47th ed. p F-31 - F-42
↑ CRC Handbook of Chemistry and Physics 47th ed, p D-104
↑ "Pure Component Properties" (Queriable database). Chemical Engineering Research Information Center. Retrieved 19 May 2007.
1 2 3 4 5 6 "Binary Vapor-Liquid Equilibrium Data" (Queriable database). Chemical Engineering Research Information Center. Retrieved 19 May 2007.

Linstrom, Peter (1997). "NIST Standard Reference Database". National Institute of Standards and Technology. doi:10.18434/T4D303.{{cite journal}}: Cite journal requires |journal= (help)

This box:

Except where noted otherwise, data relate to Standard temperature and pressure.
Reliability of data general note.

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[crcF31-1] CRC Handbook of Chemistry and Physics, 47th ed. p F-31 - F-42

[crcD104-2] CRC Handbook of Chemistry and Physics 47th ed, p D-104

[cheric_p-3] "Pure Component Properties" (Queriable database). Chemical Engineering Research Information Center. Retrieved 19 May 2007.

[cheric_b-4] 1 2 3 4 5 6 "Binary Vapor-Liquid Equilibrium Data" (Queriable database). Chemical Engineering Research Information Center. Retrieved 19 May 2007.

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